A buffer is prepared using lactic acid (HLac) and sodium lactate (NaLac). 0.300 dm3 of the0.500 mol·dm–3 HLac solution is mixed with 0.300 dm3 of the 0.300 mol·dm–3 NaLac solution to prepare the buffer. Ka for lactic acid (HLac) is 1.4 x 10-4     a) Calculate the pH of the lactic acid before it is mixed with the NaLac to form the buffer.  b)  Calculate the pH of the sodium lactate solution before it is mixed with the HLac to form the buffer.  c)  Calculate the pH of the buffer solution.  d)  What will the pH of the above solution be after 5.0 cm3 of 0.200 mol·dm–3 NaOH has been added to only 100.0 cm3 of this buffer?

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Q: 200.0 mL of a 3.50 mol/L solution of potassium chloride is added to a concentrated lead (II) acetate…

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Q: The molar solubility of the metal hydroxide (M(OH)2) in water is: M(OH)2 = M2+ + 2ОН Ksp = 5.02 x…

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Q: A buffer is prepared using lactic acid (HLac) and sodium lactate (Nalac). 0.300 dm3 of the 0.500…

A: The answer for part (a) is given below. Kindly post the other sub parts as separate questions Given:…

Q: A solution contains 1.0 x 10- mol of KBr and 0.10 mol of KCI per liter. AGNO3 is gradually added to…

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Q: A solution is prepared by mixing 50.0 mL of 0.50 M CaCl2 with 50.0 mL of 0.50 M CoCl2. When Na2CO3…

A: Given,  Molarity of CaCl2 = 0.50 M  Volume of CaCl2 = 50.0 mL Molarity of CoCl2 = 0.50 M  Volume of…

Q: A buffer solution is prepared from a generic weak acid "HG" and the salt KG. The K, for HG is 3.7 x…

A: Buffer solution is a solution that maintains and nullifies a small change in the pH of solutions. It…

Q: The solubility product of MgF, is 10-8.2. (A) What is the solubility of Mg* at equilibrium with…

A: Given: Ksp of MgF2 = 10-8.2 = 6.31 X 10-9 approx.

Q: Which of the following is the least soluble in water? Sodium chloride Ammonium acetate Calcium…

A: The given molecules are: sodium chloride(NaCl), ammonium acetate (NH4CH3COO), calcium…

Q: A 1.00 liter solution contains 0.53 moles nitrous acid and 0.41 moles potassium nitrite. If 0.20…

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Q: alance each of the following word equations. Find if the substances are soluble (aq) or insoluble…

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Q: In the study of biochemical processes, a common buffering agent is the weak base…

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Q: The weak monoprotic acid, acetic acid, is titrated with the strong base, potassium hydroxide as…

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Q: When hydrochloric acid was added to the solution, lots of white precipitate formed then settled at…

A: When we add NaCl in the solvent. It forms a solution where NaCl dissociate into Na+ and Cl- and…

Q: Precipitation is the opposite of dissolution. Group of answer choices True False

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Q: 0.024 grams of solid silver chromate (Ag2CrO4) were added to 250 mL of water (final vol). How many…

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Q: When you add HCl to a solution containing aqueous sodium acetylsalicylate (structure shown below), a…

A: The given compound is Sodium Acetylsalicylate

Q: Barium sulphate (Ksp = 1.1 x 10-10) in suspension is frequently used medically as a radiocontrast…

A: Given,the molarity of BaCl2 = 0.0200 Mvolume of BaCl2 = 100.0 mLThe molarity of Na2SO4 = 0.0300…

Q: Which of the following would, if mixed with aqueous K2SO4, yield a solid, insoluble precipitate?…

A: Given different compounds which when reacted with potassium sulphate can give precipitate which is…

Q: How many mL of 0.622 M HI are needed to dissolve 5.15 g of BaCO3? 2HI(aq) + BaCO3(s) — BaIz(aq) +…

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Q: The molar solubility of calcium hydroxide in a water solution is M.

A: Molar solubility of calcium hydroxide can be calculated as follows

Q: 23.5 mL of 2.00 M calcium hydroxide is used to neutralize 119 mL of H3PO3 .  Please answer the…

A: Molarity of calcium hydroxide,Ca(OH)2 (M1)= 2.00 MVolume of calcium hydroxide,Ca(OH)2 (V1)= 23.5…

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A: Compound having largest solubility = ?  --------------------------------------------------

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Q: An aqueous solution contains a mixture of 0.0026 M of Fe 2+ and 0.0026 M of Al3+ ions. In order to…

A: For, Fe(OH)2, [Fe2+] = 0.0026 M Ksp is given by:

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A: The Ksp of AgCN is given as 6 x 10-17

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Q: An analyst was titrating a solution of unknown acetic acid concentration with 0.01 M NaOH using…

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Q: A chemistry graduate student is given 300, ml. of a 1.00M nydrocyanic acid (HCN) solubon.…

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Q: (a) If the molar solubility of YF3 at 25 °C Is 4.23e-06 mol/L, what is the Ksp at this temperature?…

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Q: The apparent solubility products of AgCN and PBF2 at 25°C are 6.0x10-17 and 3.3x10-8, respectively.…

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Q: The solubility of Mg(OH)2 in water at 25 °C is measured to be 0.0096 Use this information to…

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Q: Suppose a solution is prepared with 5.0 x10-3 M manganese ion (Mn*2) and 1.0 x x10-4 M sulfide ion…

A: Given: Concentration of Mn2+ ions = 5.0 X 10-3 M Concentration of S2- ions = 1.0 X 10-4 M And Ksp of…

Q: A solution is 0.010 M in both Br- and SO42-. A 0.250 M solution of lead (II) nitrate is slowly added…

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Q: A student prepares a dilute solution of sodium hydroxide, NaOH, starting with 6 M sodium hydroxide.…

A: Mass of KHP = 1.372 g Volume of sodium hydroxide, NaOH = 21.84 ml = 21.84 L1000

Q: Iminodiacetic acid (IDA) is often used in ion exchange resins as a way to remove heavy metals from…

A: Solution - ɑA2- = 4.6 × 10-3 Kf =[Ni A22-] /[Ni 2+][ɑ A2-]2 C 2IDAA [Ni A22-] /[Ni 2+] C 2IDAA =…

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for